| 摘要 |
<p>A supersonic aircraft (110) having highly swept subsonic leading edge portions (128) of the wings (114) provided with boundary layer control suction slots (136). When the airplane is operating at high angles of attach under circumstances whew noise is objectionable, air is drawn in through the suction strips to alleviate separated air flow and subtantially eliminate (or at least alleviate) vortices that would otherwise develop over the upper wing surface. This improves the L/D ratio and permits the engines (118) to be at a lower power setting, thus alleviating noise. There are shown a double delta planform configuration, and an arrow plan form configuration. Also, the boundary layer control suction can be used in conjuction with laminar flow control suction. <IMAGE></p> |
